Crash after playing movies
VIVALDI crashes after playing movies on twitter, Youtube and so on.
Specifically, it crashes at the end of HTML5 media files, from what I can tell.
I'm also having this issue. It does seem to be specifically HTML5 video, though I haven't thoroughly tested that. To add a bit more information about my system: I'm running macOS Sierra, 10.12 (16A323). I've tested with both the most recent stable (1.4.589.29) and dev snapshot (1.5.609.8) versions, and this issue occurs in both. I also tested in some other browsers: videos play fine in Safari and Chrome, but NOT Opera. I first noticed the problem after upgrading to Sierra. Don't know if that's what others are using. The issue occurs even with embedded and/or auto-playing video, which makes some sites pretty unusable (ex: tumblr).
Please note if you're testing this that the problem is when a video finishes, not while it's playing (unfortunately, many videos on tumblr are only a few seconds long). Skipping to the end does work to reproduce the problem; the problem occurs whether or not you skip to another place in the video.
If anyone else is having this issue, it might help if we can figure out whether this problem is only on Sierra or not. Which version are y'all using?
This issue is happened on my Mac. So, I made another topic in Vivaldi Forum.
Crash Tab Issue by Specific YouTube Video：Vivaldi Forum
I use Vivaldi snapshot 1.5.609.8 on macOS Sierra 10.12. In my case, When specific YouTube HTML5 videos finished to play, Vivaldi's tabs crashed.
Incidentally, My Vivaldi's tab was not always crashed by that YouTube HTML5 video finished. My Vivaldi's tab was crashed by that "specific" videos finished. And this issue was happened on Opera 40. But this issue was not happened on Firefox 49 and Safari 10. So, I think the reason of this issue is Chromium.
Crash was investigated and is internally fixed yet.
Please wait for next Snapshot or Final.
Vivaldi's staff, Ruarí Ødegaard said about this issue on Twitter, too. He said,
"Hey, we noticed that our Mac fans on 10.12 Sierra are getting some crashes with videos. We are testing a possible fix."
"The crashing videos on macOS Sierra 10.12 has now been resolved in a 1.4 minor update"
Just downloaded the new 1.4 update and it did indeed fix the problem, thank you so much!
I confirmed this issue was fixed on Vivaldi snapshot 1.5.618.8.
Snapshot 1.5.618.8 - Drag tabs between windows and performance improvements：Vivaldi Official Blog